Guides about ufw
- How to set up a WireGuard VPN server on Ubuntu or Debian Build your own WireGuard VPN on a Linux server: generate keys safely, write wg0.conf, enable forwarding and NAT with ufw, run wg-quick under systemd and hand out client configs as QR codes. Intermediate 35 min
- Set up a firewall with UFW on Ubuntu and Debian UFW is the simplest way to run a deny-by-default firewall on Ubuntu and Debian. Set it up in the right order so you never lock yourself out. Beginner 15 min
- How to secure a new Linux server in the first hour A new server is reachable from the internet the moment it boots. These steps close the most common gaps before you install anything else. Beginner 30 min
- Locked out after a firewall change: how to get back in A firewall rule or a port change can cut your own connection. Use the console to undo it, then apply firewall changes with a safety net. Intermediate 10 min